It was vital to our chance of success that nothing unusual, however little, should be visible in Anzac from the Turk positions during the days before the battle. One man staring up at an aeroplane would have been evidence enough to a quick observer that there was a new-comer on the scene. One new water tank, one new gun, one mule not yet quiet from the shock of landing, might have betrayed all the adventure. Very nearly thirty thousand men, one whole Division and one Brigade of English soldiers, and a Brigade of Gurkhas, with their guns and stores, had to be landed unobserved and hidden. There was only one place in which they could be hidden, and that was under the ground. The Australians had to dig hiding places for them before they came. In this war of digging, the daily life in the trenches gives digging enough to every soldier. Men dig daily even if they do not fight. At Anzac in July the Australians had a double share of digging, their daily share in the front lines, and, when that was finished, their nightly share, preparing cover for the new troops. During the nights of the latter half of July the Australians at Anzac dug, roofed and covered not less than twenty miles of dugouts. All of this work was done in their sleep time, after the normal day's work of fighting, digging and carrying up stores. Besides digging these hiding places they carried up, fixed, hid, and filled the water tanks which were to supply the newcomers. [Illustration: A boatload of British troops leaving the S.S. _Nile_ for one of the landing beaches]